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WO/2020/167950A9 |
The present disclosure pertains to detection of abnormal, risky, or abberant conditions in a power distribution network and to corresponding trip signals being used to trip open devices such as reclosers upstream of where the abnormal co...
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WO/2021/000738A1 |
Disclosed are a direct-current transmission line protection method and system based on pure current characteristics. The direct-current transmission line protection method based on pure current characteristics comprises: collecting, at a...
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WO/2021/001872A1 |
Provided is an uninterruptible power supply device capable of responding to a variety of system abnormalities other than frequency fluctuation and voltage drop including instantaneous voltage drop. An uninterruptible power supply device ...
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WO/2020/263288A1 |
A multilevel converter system is provided. The multilevel converter system includes a multilevel converter and a short-circuit protection circuit. The multilevel converter includes a first segment and a second segment electrically connec...
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WO/2020/261673A1 |
Provided is a charging apparatus with which it is possible to minimize the progression of ion migration at a receptacle of the charging apparatus. This charging apparatus (10) is provided with: a receptacle (15) including a plurality of ...
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WO/2020/263860A1 |
A solid state switch (SSS) monitoring system of an electronic device includes a SSS sensing component that is electrically coupled to a solid state switch. The SSS sensing component periodically generates a clocked pulse that polls the s...
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WO/2020/262002A1 |
The objective of the present invention is to prevent abnormal charging from being performed even in the event that a microcomputer in a charging circuit runs out of control. A battery pack (100) is provided with: a current detecting unit...
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WO/2020/257219A1 |
A system comprises a superconducting magnet comprising a coil of superconducting material. The coil includes electrical terminals. The windings of the coil are separated by a metallic conductor. A control circuit is coupled to the termin...
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WO/2020/256803A1 |
Various embodiments provide a direct current (DC)-DC converter circuit. The DC-DC converter circuit includes a control circuit to switch the DC-DC converter circuit between a charge state, a discharge state, and a tri-state mode. As part...
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WO/2020/255972A1 |
This storage battery module comprises: a storage battery (BAT); a power conversion circuit (2) which includes a switching element (Q1) and raises a DC voltage inputted from the storage battery (BAT) to a first terminal (teih, teig); a sm...
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WO/2020/255440A1 |
A conventional ground fault direction relay device that determines a ground fault direction of its own line and performs a leakage alarm operation for the purpose of preventing an unnecessary movement (received movement) has a problem in...
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WO/2020/251607A1 |
A high-speed current sensing circuit configured to measure current associated with switching devices of a power generation system. The circuit includes logic for turning one or more corresponding switching devices off before failure, so ...
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WO/2020/249099A1 |
A battery pack detachably connected to an external device for charging or discharging. The battery pack comprises a cell unit (150), a control module (110), a first signal terminal (120) and a second signal terminal (160); the first sign...
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WO/2020/246067A1 |
This power receiving device (10) comprises: an exterior having a shape that can accommodate a secondary battery (60); a power receiving coil member (30) disposed inside the exterior; and a circuit board (50) disposed inside the exterior ...
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WO/2020/237341A1 |
The present invention relates to a method and system for identifying failure in a compressor (4) of a cooling system employing an implementation of at least a failure identification logic and a braking logic, based on monitoring of at le...
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WO/2020/239326A1 |
The invention relates to a system (1) comprising a control device (10) with central electronics (11) designed for the intended connection and operation of differently coded electric motors (En) with different motor characteristics (Mn) a...
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WO/2020/241659A1 |
According to the present invention, a switching converter 130 has an input line that receives a DC voltage VIN, and an output line connected to a smoothing capacitor 102. A switch MC2 and an inrush current prevention resistor 104 are pro...
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WO/2020/234064A1 |
The invention relates to a system (10) comprising at least two loads (14) which are connected to a common feed line (12) and can be switched off selectively and to the use of at least one interrupter switching element (22) with an extern...
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WO/2020/233837A1 |
Various embodiments of the present invention are directed to a first trip unit that is configured to be coupled to a power distribution system arranged in a Zone Selective Interlocking (ZSI) arrangement. The first trip unit includes an I...
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WO/2020/234136A1 |
The invention relates to an overcurrent protection device for protecting a load (11, 12; 13, 14) arranged in a DC grid (1). The load (11, 12; 13, 14) is coupled to a supply busbar (10V), which is connected or can be connected to a supply...
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WO/2020/228150A1 |
Provided in the present invention are an overcurrent protection circuit and a drive method therefor. The overcurrent protection circuit comprises: an overcurrent protection module and an overcurrent detection module, wherein the overcurr...
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WO/2020/228701A1 |
The present application provides a photovoltaic inverter, comprising a DC/AC converter, a positive direct current busbar, a negative direct current busbar, a drive control circuit, and at least one first unit. A first end of the positive...
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WO/2020/225340A1 |
The invention relates to a lightning protection spark gap assembly. The lightning protection spark gap assembly comprises: a lighting protection spark gap (1) having a first main connection (1a) and a second main connection (1b), wherein...
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WO/2020/225339A1 |
The invention relates to a lightning protection spark gap assembly. The lightning protection spark gap assembly comprises: a lightning protection spark gap (1); a safety fuse device (8) which can be triggered by a bridge initiator (7) an...
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WO/2020/225960A1 |
A system for estimating a severity of a bearing fault in an induction motor, uses a set of filters and a set of quantitative models designed for a set of fault frequencies. The system, upon receiving the measurements of the stator curren...
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WO/2020/224537A1 |
A transformer digital adaptive protection apparatus and method based on pressure characteristics, comprising: a transient oil pressure characteristic quantity measurement module, a switch quantity input module, a signal conditioning and ...
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WO/2020/222261A1 |
The problem to be solved is to provide a system and a method to protect the regulator rectifiers from the reverse voltage condition and the short circuit condition, and the problem is solved in the present invention by a system (110) and...
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WO/2020/221514A1 |
The invention relates to a load zone (1) comprising an electronic switch (2), a DC bus (3), a connection (30) for supplying the load zone (1) with electrical energy, and at least two electrical devices (4), the electronic switch (2) bein...
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WO/2020/216556A1 |
The invention relates to a method for determining a supply current of an electrical energy supply system (100) having a DC voltage source (10), a resistive component (20) and an electrical load (30), the resistance value of which is know...
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WO/2020/217780A1 |
Reverse connection protection relays (41, 42) are provided to respective power-supply systems that individually supply power from first and second in-vehicle batteries (201, 202) to a driving circuit part (10). The reverse connection pro...
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WO/2020/215763A1 |
The present invention relates to the technical field of high-voltage direct current transmission valve cooling devices. A DCS control method for high-voltage direct current transmission comprises: three independently functioning protecti...
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WO/2020/212300A1 |
There is provided mechanisms for handling time shifted data streams in a substation network (100a, 100b). A method is performed by an IED (200). The method comprises receiving (S102) a respective data stream from at least two time synchr...
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WO/2020/214649A1 |
Power tools including a housing, a motor, a power circuit supplying operating power to the motor through a triac, a speed sensor configured to detect a speed of the motor, a speed selector, and an electronic processor. The electronic pro...
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WO/2020/212533A1 |
The invention relates to a transient based method for identifying faults in an electric power transmission and/ or distribution system (100) having at least one current transmission line (L 12, L 13, L 23 ) comprising the following steps...
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WO/2020/213037A1 |
This power conversion device (1) comprises a power converter (10), an AC circuit breaker (CB), a switching control unit (240), and a breaker control unit (250). The power converter (10) includes an arm. The arm includes a plurality of un...
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WO/2020/211409A1 |
Disclosed are a vending machine, a direct-current motor control system, and a direct-current motor control method and apparatus. The control system comprises an electric motor on-line detection module, an electric motor blocked rotor det...
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WO/2020/210204A1 |
A power converter with ground fault protection (PCGFP circuit 100) circuit includes an input stage (101), a first voltage converter (104), and an output stage (103). The input stage is connected to a power bus to receive an input direct ...
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WO/2020/209071A1 |
A protection element capable of cutting off a current path safely and promptly with hardly any sparks even when a high voltage is applied thereto and a battery pack using the protection element are provided.　The protection element has:...
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WO/2020/207730A1 |
The invention relates to a method for locating an earth fault in a DC network (1), to which multiple load zones (3, 5) can be connected, wherein each load zone (3, 5) has two symmetrically earthed load zone lines (31, 32). In the method,...
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WO/2020/209516A1 |
The present invention relates to an overcurrent protection inverter, and more particularly, to an inverter, which uses a leg-shunt resistor so as to detect an instantaneous maximum output current and an AD current, thereby performing an ...
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WO/2020/207729A1 |
The invention relates to a method for detecting a ground fault in a load zone (3) that can be connected to a direct-current network (1), the load zone having a first load zone line (31) which can be connected to a first main line (7) of ...
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WO/2020/200496A1 |
The invention relates to an electric grid (1000), comprising feed-ins (1010; 1011; 1012; 1013; 1014; 1015), loads (1050; 1051; 1052; 1053; 1054; 1055; 1056; 1057), and a distribution grid (2000) which is arranged therebetween and compris...
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WO/2020/200492A1 |
The invention relates to a device (100) for opening or closing a DC circuit with at least one busbar (200), comprising: - an electric switch (110) for opening or closing the DC circuit, - a fault current detector (120), - a trigger unit ...
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WO/2020/200495A1 |
The invention relates to an electric grid (1000), comprising feed-ins (1010... 1013), loads (1050... 1055), and a distribution grid (2000) which is arranged therebetween and comprises at least one busbar (200) and at least one device (20...
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WO/2020/200494A1 |
The invention relates to an electric grid (1000) which is equipped with feed-ins (1010... 1013), loads (1050... 1053), a distribution grid (2000) arranged therebetween, at least one semiconductor switch (2010, 2011), and at least one ele...
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WO/2020/203511A1 |
This power supply control device (10) has a first series circuit (6) in which a first switch (60) and a first resistor (61) are connected in series. In a second series circuit (7), a second switch (70) and a second resistor (71) are conn...
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WO/2020/204685A1 |
The invention relates to electrical engineering and is designed for monitoring the working parameters of a power transformer when in service and for controlling the systems of said transformer. The aim of the invention is to increase tra...
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WO/2020/200493A1 |
The invention relates to a method for coordinating a distribution grid of different levels of electromechanical switches and automatically electrically closable devices in a DC circuit, wherein the distribution grid is arranged between f...
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WO/2020/201129A1 |
The invention relates to an electronic circuit arrangement (1) for monitoring temperatures, having: an electronic temperature-determining circuit (2a, 2b, 2c), which comprises a primary temperature sensor (5) for measuring an ambient tem...
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WO/2020/192314A1 |
Disclosed are an energy storage system electric arc detection and protection method and a related device, used for improving the accuracy of electric arc detection in an energy storage system, enabling prompt arc extinguishing measures, ...
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